OpenAI has reached a strategic agreement with the U.S. Department of Defense to deploy its advanced artificial intelligence models within the military’s classified networks.
The deal, announced by CEO Sam Altman on Saturday, February 28, 2026, marks a pivotal moment in the integration of frontier AI into national security operations and follows a high-profile collapse in negotiations between the government and OpenAI’s primary rival, Anthropic.
The agreement allows the Pentagon to utilize OpenAI’s models, including specialized versions of ChatGPT, subject to strict ethical and technical guardrails.
Altman emphasized that the partnership is anchored by two non-negotiable safety principles: a total prohibition on domestic mass surveillance and a requirement for human responsibility in the use of force, specifically excluding the development of fully autonomous lethal weapon systems.
According to the CEO, these red lines are explicitly codified in the contract and aligned with existing federal law and policy.
This development occurred just hours after President Donald Trump issued a directive for all federal agencies to immediately cease using technology from Anthropic.
The administration’s move followed a tense standoff where Anthropic reportedly refused to grant the military unobstructed access to its models for all lawful purposes, leading Defense Secretary Pete Hegseth to designate the startup as a national security supply-chain risk.
By contrast, OpenAI navigated the impasse by building a safety stack of technical controls and deploying field engineers to oversee implementation within the Pentagon’s secure cloud environment.
Beyond the immediate deployment, Altman urged the Department of Defense to offer these same contractual terms to the broader AI industry.
He framed the agreement as a template for reasonable de-escalation between private tech firms and the government, suggesting that companies should be willing to support national security missions provided that core safety and human-oversight principles remain intact.
The deal solidifies OpenAI’s position as a preferred partner for the U.S. government, particularly as the company’s valuation recently climbed to over $700 billion following a record-breaking $110 billion funding round.
